What Hardware version is your router? Look at sticker under the router case.
-> A1
Link>What Firmware version is currently loaded? Found on the routers web page under status.
-> 1.09 Fri 26 Sep 2014 (the latest i can find on the Dlink site)
What region are you located?
-> Europe (Belgium)
i know about the WEP security mode, but it's only used for visitors ...
i did not test the guest zone with WPA2 ... i will try to do this later today